package thread;

public class demo8 {
    private static int count = 0;

    public static void main(String[] args) throws InterruptedException {
        Thread t1 = new Thread(() -> {
            for (int i = 0; i < 10000; i++) {
                synchronized (demo8.class) {
                    count++;
                }
            }
        });
        Thread t2 = new Thread(() -> {
            for (int i = 0; i < 10000; i++) {
                synchronized (demo8.class) {
                    count++;
                }
            }
        });
        t1.start();
        t2.start();
        t1.join();
        t2.join();
        //main线程等t1 t2线程执行完毕后再往后走
        System.out.println(count);
    }


}
